content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------
   * YWithXInterval.java
   * -------------------
   * (C) Copyright 2006-2008, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 20-Oct-2006 : Version 1 (DG);
   *
   */
  
  package org.jfree.data.xy;
  
  import java.io.Serializable;
  
  /**
   * A y-value plus the bounds for the related x-interval.  This curious
   * combination exists as an implementation detail, to fit into the structure
   * of the ComparableObjectSeries class.  It would have been possible to
   * simply reuse the {@link YInterval} class by assuming that the y-interval
   * in fact represents the x-interval, however I decided it was better to
   * duplicate some code in order to document the real intent.
   *
   * @since 1.0.3
   */
  public class YWithXInterval implements Serializable {
  
      /** The y-value. */
      private double y;
  
      /** The lower bound of the x-interval. */
      private double xLow;
  
      /** The upper bound of the x-interval. */
      private double xHigh;
  
      /**
       * Creates a new instance of <code>YWithXInterval</code>.
       *
       * @param y  the y-value.
       * @param xLow  the lower bound of the x-interval.
       * @param xHigh  the upper bound of the x-interval.
       */
      public YWithXInterval(double y, double xLow, double xHigh) {
          this.y = y;
          this.xLow = xLow;
          this.xHigh = xHigh;
      }
  
      /**
       * Returns the y-value.
       *
       * @return The y-value.
       */
      public double getY() {
          return this.y;
      }
  
      /**
       * Returns the lower bound of the x-interval.
       *
       * @return The lower bound of the x-interval.
       */
      public double getXLow() {
          return this.xLow;
      }
  
      /**
       * Returns the upper bound of the x-interval.
       *
       * @return The upper bound of the x-interval.
       */
      public double getXHigh() {
          return this.xHigh;
      }
  
      /**
       * Tests this instance for equality with an arbitrary object.
       *
       * @param obj  the object (<code>null</code> permitted).
       *
       * @return A boolean.
       */
      @Override
      public boolean equals(Object obj) {
          if (obj == this) {
              return true;
          }
          if (!(obj instanceof YWithXInterval)) {
              return false;
          }
          YWithXInterval that = (YWithXInterval) obj;
          if (this.y != that.y) {
              return false;
          }
          if (this.xLow != that.xLow) {
              return false;
          }
          if (this.xHigh != that.xHigh) {
              return false;
          }
          return true;
      }
  
  }
  